Final post: Depending on size (dia.) and length you might consider
getting sheet copper of the appropriate thickness and having a
sheetmetal fabrication shop cut it and roll it to your dimensions.
They could also form a lap seam or lock seam where the 2 edges meet
and cut your end plates too. You might also want to consider
aluminum, problably cheaper, if you have access to a TIG or heliarc
welder. Try a local or area trade school and talk to the welding
instructor. They might build what you want just for the student
practice.
Buenos Noches Doug N3DAB
--- In Repeater-Builder@yahoogroups.com, "Paul Holm" <[EMAIL PROTECTED]> wrote:
>
> For all the looking I've done, I've only ever found one place on
the web
> that had 4" or larger copper pipe available. And it was something
like
> 30.00/foot. Has anyone found better sources for this type of pipe
for
> building cavities?
>
> 73 Paul
>
>
> ----- Original Message -----
>
> > If you look around the ham radio web sites, there are many
articles on
> > making
> > 6 m duplexersw out of copper or aluminum pipe. Less expensive
than having
> > to biuy a factory-made one.
> >
> > 73,
> >
> > Dick
> >
>
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